Pump and storage device for an artificial respiration apparatus



Sept. 19, 1967 P. L. CLEMENTZ 3,342,177

PUMP AND STORAGE DEVICE FOR AN ARTIFICLAL RESPIRATION APPARATUS FiledAug. 11, 1964 INVENTOR.

Pehr Law lementz dZZom gy United States Patent 3,342,177 PUMP ANDSTORAGE. DEVICE FOR AN ARTIFICIAL RESPIRATION APPARATUS Pehr LaweClementz, Fredsgatan 17, Sundbyberg, Sweden Filed Aug. 11, 1964, Ser.No. 388,772

Claims priority, application Sweden, Nov. 4, 1963, 12,100/ 63 1 Claim.(Cl. 128--145.7)

This invention relates to a device used for artificial respiration, andmore particularly to a device which will be relatively small in size,light in weight and compact to such an extent as to make it readilyportable and thus easily carried by an individual.

It is an object of the invention to provide means by which the personengaged in carrying the device can make it ready for quick use due tothe ability of the compressible bag which forms the air pump of thedevice to restore itself to its normal form after compression. It is anobject of the invention to provide an air pump in the device of suchsize and shape as to enable it to serve as a container for the mask,valves and hose connector, when such elements of the device are notbeing used, thus lending for the portability and compactness of thedevice.

It is an object of the invention to provide an air pump in the form of acompressible bag having an aperture normally receiving a filter andwhich aperture shall be of such size that various parts of the devicemay be entered through it for storage inside of the bag.

It is another object of the invention to provide a device of this kindwhich while in use will free the hands of the user, enabling him to holdthe head of the person being treated to arrange for free passage of airthrough the windpipe to facilitate respiration. In such case the air bagor pump can be compressed between the elbow and ribs of the user of thedevice or perhaps between the foot and floor.

More particularly, the invention contemplates the provision of an airbag or pump in the form of a compressible bag provided with an air inletvalve. The bag has a large aperture or mouth in which a removable filterfor vitiated air is fitted, said filter constituting a closure for saidmouth. A hose, valves and a mask are attached to the filter. By theremoval of the filter the hose, valves and mask can be placed inside ofthe bag and the filter replaced to close the mouth of the same andconfine the parts above mentioned within the bag.

With these and other objects to be hereinafter set forth in View, I havedevised the arrangement of parts to be described and more particularlypointed out in the claim appended hereto.

In the accompanying drawing, wherein an illustrative embodiment of theinvention is disclosed,

FIG. 1 shows a respiration device constructed according to the presentinvention and in position for use, and

FIG. 2 shows the device in a position of non-use and in readiness forcarrying.

Referring to the drawing, a respiration mask is shown at 1, the samebeing a so-called half mask which fits around the nose and mouth. At theopening or mouth in the mask is located an inhalation valve 2 and anexhalation valve 9, the housing containing the valves being connected bythe flexible rubber hose 3 to a filter 4 for vitiated gas which isfitted in the mouth of a flexible rubber bag constituting an air pump,said bag being provided with an air inlet valve 6.

The filter 4 can be the type conventionally employed in ordinary gasmasks. Said filter is fitted in the relatively large opening or mouthfor the bag or pump 6 and forms a lid or closure therefor. The air pump,which thus consists of a soft, compressible bag has the non-return inletvalve 6 so that when the bag is compressed, it returns to its normal orexpanded shape. Due to the resistance in the filter 4 it happens thatthe interior air space of the pump will not be exposed to theunderpressure caused by the pump or bag when it expands. The air pump orbag is located in front of the filter in the direction of the airpassage. If the pump was attached behind the filter 4 the underpressurewould prove to be annoying due to the possibility of leakage of vitiatedair into the device.

The mouth of the bag into which the filter 4 is fitted can be quicklyclosed around the filter by a resilient or other tension band or asquickly removed from it without involving the risk that the injuredperson is likely to be exposed to the inhalation of poisonousatmosphere.

When the device is not in active use, the bag or pump can be employed asa container or housing for the other parts of the device. That is tosay, the filter 4, the hose 3 attached to it and the mask and valves atthe end of the hose, can be detached from the bag and the filter placedback in the mouth of the bag in a reversed position so that it thenlocates the mask, hose and valves on the inside of the bag. The filteris held in its reversed position in the mouth of the bag by a tensionband 10 and the aperture 7 constituting the intake of the filter 4 canbe closed by a rubber stopper 8. A strap 11 can be attached forconvenience in carrying the device while it is in the storage conditionshown in FIG. 2. Such strap can be hung across the shoulder or it can befastened to the belt even during the actual use of the device.

The pump may be operated by squeezing the bag and as herein stated thatcan even be done while both of the hands of the operator are free sinceit can be squeezed between the arm and body or squeezed between the footand floor. If the injured person is able to breathe unaided a devicemade according to the invention and without the air pump is suitable foruse as a gas mask as long as the user is in a vitiated atmosphere. Ifthe injured person needs artificial respiration, the air pump or bag isIattached as described for the pressure of air into his ungs.

The device can be used for artificial respiration in pure air, forexample in cases of drowning at beaches or similar locations and in suchcases it is not necessary to use a filter for vitiated air and only aninverse-shaped lid can be used.

Having thus described a single embodiment of the invention, it isobvious that the same is not. to be restricted thereto, but is broadenough to cover all structures coming within the scope of the annexedclaim.

What I claim is:

A device for artificial respiration comprising, an air pump including avalved compressible bag having a large mouth, a closure for said mouthconsisting of a filter for vitiated air, the filter being of a shape andsize to conform to and close the mouth of the bag and to enable it to befitted in the mouth with either of its opposite faces directed towardthe interior of the bag, a. connecting device around the filter tothereby hold the filter in either of its two positions, a flexible tubecarrying valves and a mask, attached to the filter and extending fromone of the faces of the filter, the filter when fitted in one position,having the tube, valves and mask arranged to locate such elements on theoutside of the bag in operative position to function when the bag iscompressed, the bag being of a size to enable it to contain the filter,hose, valves and mask and serve as a protective enclosure therefor whenthe filter is positioned in the mouth of the bag so that said hose andattached valves and mask are disposed within the bag.

(References on following page) References Cited UNITED STATES PATENTSEmerson 128-29 Doe 220-85 5 Pierpont 128-29 Wildhack 128-203 XKreiselman 128-29 Paramelle 128-29 4 FOREIGN PATENTS 252,107 6/ 1964Australia. 1,144,324 4/ 1957 France. 1,237,217 6/1960 France.

RICHARD A. GAUDBT, Primary Examiner.

K. L. HOWELL, Assistant Examiner.

